title: [Primary gastrointestinal diagnosis. Roentgen or endoscopy?].
mesh_terms: D004724:Endoscopy / Q000379:methods*; D005767:Gastrointestinal Diseases / Q000175:diagnosis*; D006801:Humans; D012306:Risk
vernacular_title: Primäre gastrointestinale Diagnostik. Röntgen oder Endoskopie?